EP 0866973 B1 20020529 - ELECTROMAGNETIC ACCELEROMETER
Title (en)
ELECTROMAGNETIC ACCELEROMETER
Title (de)
ELEKTROMAGNETISCHER BESCHLEUNIGUNGSSENSOR
Title (fr)
ACCELEROMETRE ELECTROMAGNETIQUE
Publication
Application
Priority
- FR 9601969 W 19961210
- FR 9514687 A 19951212
Abstract (en)
[origin: WO9722011A1] An electromagnetic accelerometer comprising a sensitive silicon portion with a movable weight (2) connected to a frame (3) via a suspension arm (80, 81). The sensitive silicon portion is secured to a motor (1) having so-called negative stiffness and including a stationary pole chamber (12) connected to the frame, a magnet (5), a coil (6) and a movable pole portion (14) inserted into the chamber (12) and secured to the movable weight (2). Said accelerometer is useful in geophones.
IPC 1-7
IPC 8 full level
G01P 15/08 (2006.01); G01P 15/12 (2006.01); G01P 15/13 (2006.01)
CPC (source: EP US)
G01P 15/0802 (2013.01 - EP US); G01P 15/123 (2013.01 - EP US); G01P 15/132 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE DK FI GB LI NL SE
DOCDB simple family (publication)
WO 9722011 A1 19970619; AU 1101697 A 19970703; AU 707264 B2 19990708; BR 9612775 A 20001024; CA 2239107 A1 19970619; DE 69621452 D1 20020704; DE 69621452 T2 20021107; DK 0866973 T3 20020916; EP 0866973 A1 19980930; EP 0866973 B1 20020529; FR 2742231 A1 19970613; FR 2742231 B1 19980102; JP 2000502442 A 20000229; MX 9804822 A 19981031; NO 982668 D0 19980610; NO 982668 L 19980811; US 6076403 A 20000620
DOCDB simple family (application)
FR 9601969 W 19961210; AU 1101697 A 19961210; BR 9612775 A 19961210; CA 2239107 A 19961210; DE 69621452 T 19961210; DK 96941730 T 19961210; EP 96941730 A 19961210; FR 9514687 A 19951212; JP 52179597 A 19961210; MX 9804822 A 19980612; NO 982668 A 19980610; US 7788998 A 19980612